Sectional flue.



' No. 660,832. Patented Oct. 30, I900. E. A. BELL.

SECTIUNAL FLUE.

(Application filed June 12, 1900.)

(Id llodal.)

FFICE.

PATENT EDWARD A. BELL, OF NEW YORK, N. Y.

SECTIONAL FLU E.

SPECIFICATION forming part of Letters Patent No. 660,832, dated October 30, 1900.

Application filed June 12, 1900. serial No- 20,0Z6. (No model.)

T0 at whom it may concern:

Be it known that I, EDWARD A. BELL, a citizen of the United States, residing in New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Sectional Flues, of which the-following is a specification.

This invention relates to fiuessuch, for instance, as fireproof fines formed of hollow sec- -tionsthe object of the invention being to provide an improved flue-section which can be readily and quickly assembled with its companion sections to form a flue having tight joints, the ends of each section being so constructed that the shrinkage or warpage of the clay or other material of which the flue is composed during the drying and burning thereof will not prevent the ends of the section from properly and correctly fitting the ends of its companion sections, thereby to permit the-proper assemblage of the sections with tight joints and also permit such assemblage without the necessity of using cement or analogous material until the fiue has been completelybuilt.

In the drawings accompanying and forming part of this specification, Figure 1 is a perspective view of a pair of flue-sections assembled, a part of such sections being broken away more clearly to show the construction thereof. Fig. 2 is a vertical sectional view of the sections shown in Fig. 1. Fig. 3 is an enlarged sectional view of the joint formed by the assemblage of two of. these improved sections, and Fig. 4 is a perspective top view of a portion of one edge of one of such sections.

Similar characters of reference designate like parts in all the figures of the drawings.

In the form thereof herein shown and dejoints being so formed that they can after the assemblage of the sections be quickly filled with cement. For this purpose each section has one of its edges, as a, cut away to form a side surface 4, shown herein as an inclined surface terminating in a flat or straight surface or edge 5. This inclined surface 4 in the form shown, extends from the outer side of the section. The opposite edge, as b, of the section is provided with a pair offlat or straight surfaces or edges 6 and 7, connected by an intermediate surface 8 (shown herein as an inclined surface) at the inner edges of such straight surface, whereby when an edge 1) of one section is in engagement with an edge aof another section there is provided at all sides of the sections a space 9, shown herein as triangular, for the reception of cement or mortar. r

In practice it will be obvious that one seetionmay have both of its edges formed in the same manneras, for instance, the upper and lower edges of one section may be formed with an inclined and a straight surface, in which case the companion section would have its upper and lower edges formed with a pair of straight or flat surfaces connected by an inclined surface.

By the formation of the edges in the manner just described the sections can be readily assembled without the use of cement or mortar, thus permitting the entire fine being built up before the joints are filled in, since the construction is such that the displacement of one section relatively to the other is prevented.

After the due is completely built the spaces 9 may befilled in with cement or other suitable material 10, thus securely and firmly connecting the sections together against displacement.

By forming the edges in the manner herein set forth the edges of the sections can be assembled to fit tightly and correctly regardless of the shrinkage or warpage of the clay during the drying and burning of the sections, whereas if these edges were formed without the inclined or angular surfaces the tight'fitting of the sections together would not be obtained.

In this improved structure it will be seen that each edge has one or more flat or straight surfaces and an inclined surface, the inclined surface of each edge being cutaway and forming what might be properly designated as a truncated cone, whereby when the edge a is in engagement with the edge I) a space is provided for the reception of cement or mortar, which, it will be seen, will properly unite the sections without the necessity of laying the same entirely across the edges of each section.

I claim as my invention- 1. A fine comprising a series of hollow sections, each having one edge contiguous to a companion section provided with a flat and an inclined surface, and its other edge provided with a pair of flat surfaces and an inclined surface, such latter inclined surface having less length than the former inclined surface, thereby providing a triangular space intermediate the sections and a point intermediate the faces of the wall and one face thereof for the reception of cement.

2. A fine comprising a series of hollow sections, each of said sections having one of its edges provided with a flat and an inclined face, and the other of its edges provided with a pair of fiat faces connected by an inclined face, the latter construction of one section being adapted to be assembled with the former construction of another section and providing a space for the reception of cement or mortar.

3. A flue comprising a series of hollow sections, one or more of the edges of one section having a pair of flat faces connected by an intermediate face extending entirely around the edge of said sect-ion; and one or more of the edges of another section being cut away to form a flat face and an outer side face, said outer side face and said fiat face engaging, respectively, with the intermediate face and with one of the fiat faces of said first section, the outer sides of said sections being flush with each other.

4. A hollow flue-section having one edge provided with a fiat face and aninclined face, and its opposite edge provided with a pair of flat faces and an inclined face intermediate said flat faces and extending entirely around the edge of said section, said last inclined face having less length than said first inclined face, whereby when the section is assembled with such last inclined face contiguous to a companion section having the first inclined face, a space is formed entirely around the flue intermediate one side of such flue and a point between the sides thereof for the reception of mortar or cement, whereby such material can be filled in after the assemblage of the sections.

5, A flue composed of a series of sections assembled edge to edge, the contiguous edges of a pair of sections having fiat and inclined surfaces forming at each side of such flue a space for the reception of filling material,such as cement.

EDWARD A. BELL.

Witnesses:

MARTIN BENEDICT, JOHN M. DENNER-LEIN. 

